Jan 04

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Minnesota Phosphorus Ban

Minnesota laid down the law on phosphorus:

via EPA

Plants need phosphorus to grow. But if there’s more than the plants can use, it can wash off lawns into waterways. Then mucky algae builds up. So, in 2004, the state of Minnesota began restricting the use of phosphorus lawn fertilizers. To buy any, you must have a soil test showing a true need.

Raff: “It’s the most stringent ban in existence.”

That’s economist Zach Raff of the University of Wisconsin-Stout. His research shows that the law has been very inexpensive to implement and has reduced phosphorus levels.

Raff: “The benefits are hugely outweighing the costs of this policy.”

He says Minnesota can provide a model for other states looking to reduce phosphorus runoff.

Hear More:

Listen to Zach Raff describe his study in more detail:

Get Schooled:

 The Fine Print:



Permanent link to this article: http://www.currentcast.org/stormwater-management/minnesota-phosphorus-ban/